Bath



Sept. 14, 1937. H. RICHTER 1 2,093,382

BATH

Filed Nov. 14, 1935 Huber? flz'ofiier INVENTOR Patented Sept. 14, 1937 UNITED STATES BATH Hubert Richter, Vienna, Austria, assignor to Steyr-Daimler-Puch firm of Austria A. G., Steyr, Austria, a

Application November 14, 1935, Serial No. 49,751 In Austria November 21, 1934 4 Claims.

This invention relates to baths, more particularly to baths formed by drawing or pressing from sheet steel or the like. Such baths are usually subjected to an enamelling process. When 5 such baths are being enamelled, considerable trouble arises, owing to the circumstance that, during the enamelling process, more particularly while they are being heated up in the enamelling oven, the baths, in consequence of the softening of the material due to the heating, become bulged inwards at the places of support through the weight of the bath resting on the supports or supporting places. It has already been proposed, in order to prevent the inward bulges, to provide special supports while the bath is being enamelled, which are disposed laterally of the places where the feet are attached and are removed again after the enamelling process. At the places, at which these supports engage, flaws are left, where the enamel coating is missing. These places have to be subsequently given a coating of paint, whereby the general appearance of the bath suffers.

The present invention has for its object to prevent the occurrence of these faults during the enamelling process, which detrimentally affeet the appearance of the bath and may even make it unsalable.

The invention consists in this, that the supports on which the bath rests during enamelling are so attached that the feet can be fixed to these supports, while retaining the advantage that during the enamelling process there will be no forcing or bulging in at the points of support through the weight of the bath. According to the invention these supports are fixed in the form of projecting members, bosses or the like, which may serve for attaching the feet, in such a manner to the place of transition or near the place of transition between the bottom and the side of the bath, which is preferably of spherical or spheroidal shape, that the vertical supporting forces which come into action, when the bath is supported at the supports during enamelling, are directed at as acute an angle as possible to the tangent at the supported part of the bath, with the result, that on the one hand the normal components of the supporting forces may be reduced to a minimum and the unfavourable stressing in bending, caused by the normal, components, may be replaced by a more favourable stressing in tension, which is caused by the tangential components of the supporting force, and that, on the other hand the greater rigidity of the bath Wall, due to the doming or bellying, more particularly when such doming or bellying at the place of transition is in the nature of a spherical or spheroidal surface, may be utilized in a particularly favourable manner, namely that the normal component of the supporting force is made to act in this place. According to the invention the projecting members (supporting bosses, plates or the like) are therefore attached, for instance by welding or by being fixed in any other way, to the bent-up parts of the wall at or as near as possible to the places of smallest radius of curvature, that is to say at the most rigid parts of the bath wall. Such an arrangement of the supports (plates or the like) enables the feet to be attached in such a manner that the feet support the bath near the outline of its bottom surface or beyond the same at the ends, so that the bath is given suflicient stability, that is, will not tilt when loaded at its rim, more particularly if the feet be placed at an inclination to one another.

A constructional example of the invention is illustrated in the accompanying drawing, in which Fig. 1 is a plan view of a bath according to the invention,

Fig. 2 a section on line c-d of Fig. 1 and Fig. 3 a section through the foot on line ein Fig. 2.

Referring to Fig. 1 of the drawing, l is the bath which may for instance consist of wall parts which, for increasing the strength, may be curved to a greater or less extent. Hitherto the feet have been disposed on such baths in planes aa which form a right angle with the main plane of symmetry AA of the bath. According to the invention the bath l is provided with feet 2 which are shifted so far towards the ends of the bath and are placed at such an inclination that their planes of symmetry form with the plane of symmetry AA an acute angle.

In the example shown in the drawing the feet 2 have a hollow, for instance U-shaped crosssection and are fixed with their upper part which is formed. by a transverse wall 5 by means of bolts 7 to a projecting member 4 (plate or the like), the bolt passing through a slot ta in the plate. The projecting member 4 (plate or the like) is arranged at a part 3 of the Wall, which has the smallest radius of curvature and which is the place where the upright wall la merges into the part lb of the wall, which forms the bottom, being for. instance welded on.

In the example illustrated the bosses 4 are disposed at the place where the bottom and wall merge into one another, which has a spherical or similar surface, whereby the particularly great rigidity of domed plates is made use of to great advantage for the supporting of the bath and the attaching of the feet.

What I claim is:-

1. An enamelled sheet metal bath including curved bottom, side and end walls forming a spherical surface, projecting members and feet attached to said spherical surface, said feet being positioned at an acute angle to each other and the walls of the bath.

2. A metal bath comprising a substantially rectangular body having curved bottom, side and end walls, a dished plate fastened to the body on each side at the ends thereof at the points of smallest radius, each plate being positioned radially of the walls so that its axis is at an acute angle to the vertical and a leg member having a vertical portion and a portion slanting at an acute angle to the vertical, said latter slanting portion being detachably fastened to the dished plate and extending outwardly beyond the walls, said leg members being disposed angularly relative to each other and radially of the walls.

3. A metal bath comprising a substantially rectangular body having curved bottom, side and end Walls, a dished plate fastened to the body on each side at the ends thereof at the points of smallest radius, each plate being provided with a slot and being positioned radially of the walls so thatits axis is at an acute angle to the vertical, a leg member having a vertical portion, a slanting portion and a transverse wall at the end of the slanting portion provided with an opening, the axis of said slanting portion being concentric with the axis of the dished plate, and a bolt passing through the slot in the plate and the opening in the transverse wall for fastening the plate and leg member, said legs being disposed radially and outwardly of the walls and angularly relative to each other.

4. A bath having vertical and horizontal walls with spheroidal shaped ends, a bearing member on each end disposed at an acute angle to the vertical walls, a U-shaped foot member having a vertical portion and a slanting portion, said slanting portion being detachably fastened to the bearing member, said slanting portions of the foot and bearing member being disposed in axial alignment and at an acute angle to the vertical and extending outwardly and radially of the walls whereby the vertical supporting forces are reduced to a minimum and inward bulging is prevented in the manufacture of the bath.

HUBERT RICHTER. 

